Saturday, April 18, 2015
somewhere in the dry lands of theni district (once proud madurai), aundipatty taluk, in bomminayakkan patty village....the place where i first caught a crab....a place where there were occasional paddy cultivation decades back.... a place which had lost the ground water levels to more than 30 meters from surface levels which was at 10 mts during my schooldays. a place where, with my cousins, scoured for nuts and fruits. the place where the coconut trees stood of which we were were proud. that was the period there were no telephones in that village, very few TVs....no cable TVs....much much more conspicuous.....no mobiles. curious to add, this photo was captured through a mobile.
technology has developed a lot, but nature has lost a lot, so is the life that's intertwined with nature-based cultivation.
peritectic Rn_Tn
a few months back we started to take trial castings of peritectic grade steels. more than generally expected breakouts, we had start of casting failures due to tundish inner-working lining temperature losses in large tundishes (~ 30T working capacity) with relatively smaller dia nozzle openings (~12mm overlapping round ports) and smaller billets (150mm * 150mm ).
some 5 years back, while working in bloom (250 *250 & 320 *250) casters, we had to face the menace of breakouts that are an inherent threats in casters where the mould levels were controlled manually.
the approach for breakouts analysis was sooooo unsystematic, we became fed up with the entire workculture. esp, when breakdowns are blamed on us, we wanted to have a better understanding of casting PERITECTIC grade steel. that naturally led to the very basic of physical metallurgy, iron-iron carbide equilibrium phase diagram, more focussed on the top-left of it. that is the peritectic region was given full attention. and to understand that portion better, i drew up this pic in ms-paint.
to my understanding, peritectic reactions involve 2 different reactants( solid-A + liquid ::::: delta ferrite +liquid steel) giving a product (solid-B ::::: austenite). and `transform'ation involves the conversion of delta-ferrite into austenite without reacting with liquid steel. tried my best to make the image self-explanatory.... here it is....
that was a time, when i had almost no knowledge of computers and image formats. i saved this pic in lossy " .JPG " format rather than lossless " .gif / .png " formats. and thanks to my friend-bap=B.ArunPrasad for gifting me the first PC.
some 5 years back, while working in bloom (250 *250 & 320 *250) casters, we had to face the menace of breakouts that are an inherent threats in casters where the mould levels were controlled manually.
the approach for breakouts analysis was sooooo unsystematic, we became fed up with the entire workculture. esp, when breakdowns are blamed on us, we wanted to have a better understanding of casting PERITECTIC grade steel. that naturally led to the very basic of physical metallurgy, iron-iron carbide equilibrium phase diagram, more focussed on the top-left of it. that is the peritectic region was given full attention. and to understand that portion better, i drew up this pic in ms-paint.
to my understanding, peritectic reactions involve 2 different reactants( solid-A + liquid ::::: delta ferrite +liquid steel) giving a product (solid-B ::::: austenite). and `transform'ation involves the conversion of delta-ferrite into austenite without reacting with liquid steel. tried my best to make the image self-explanatory.... here it is....
that was a time, when i had almost no knowledge of computers and image formats. i saved this pic in lossy " .JPG " format rather than lossless " .gif / .png " formats. and thanks to my friend-bap=B.ArunPrasad for gifting me the first PC.
Sunday, April 12, 2015
Thursday, April 9, 2015
list of my favorite songs from 90s....
making a list of songs is not a painstaking task, rather an enjoyable one. that requires not much mental energy or consideration of phenomena/concepts or analysis. just make a list of what you like.
90s was a period that i had feathers and wings, doing my schooling without any trouble. more of a dream time than a burden, spent most of the time playing games, watching TV songs in sun music. those times compering was not much famous. best 50 songs of the previous years were played everyday, and...for months. yet it was not boring to listen to those songs. cutting it short, here goes the list, of songs that i will love forever.
1. அழகோவியம் உயிரானது... - ரோஜா மலரே.
2. எந்த பெண்ணிலும் இல்லாத ஒன்று... - கேப்டன் மகள்.
3. தாஜ்மகால் ஒன்று வந்து காதல் சொல்லியதே... - கண்ணோடு காண்பதெல்லாம்.
4. அடி ஆடி வரும் பல்லாக்கு... - ஐ லவ் இந்தியா.
5. சாத்து நடை சாத்து... - சேதுபதி ஐ.பி.எஸ்.
6. நான் வானவில்லையே பார்த்தேன்... - மூவேந்தர்.
7. எங்கெங்கே எங்கெங்கே... - நேருக்கு நேர்.
8. மலரே மௌனமா... - கர்ணா.
9. பிரியா பிரியா... - கட்டபொம்மன்.
10. ஏய் ஷப்பா...ஏய் ஷப்பா... - கர்ணா.
11. ஹே சலோமா சலோ... - சுபாஷ்.
12. முதல் முதலில்... - ஆஹா.
13. இருபது கோடி நிலவுகள் கூடி... - துள்ளாத மனமும் துள்ளும்.
14. மின்னலைப் பிடித்து மின்னலைப் பிடித்து... - ஷாஜகான்.
15. மனம் விரும்புதே உன்னை உன்னை.... - நேருக்கு நேர்.
16. கை தட்டித் தட்டி அழைத்தாளே... - ஜோடி.
17. அவள் வருவாளா... - நேருக்கு நேர்.
18. அழகிய லைலா... - உள்ளத்தை அள்ளித்தா.
19. அல்லா உன் ஆணைப்படி எல்லாம்... - சந்திரலேகா.
20. மலைக்காற்று வந்து தமிழ் பேசுதே... - வேதம்.
21. சின்ன சின்னக் கிளியே... - கண்ணெதிரே தோன்றினாள்.
22. வண்ண நிலவே வண்ண நிலவே... - நினைத்தேன் வந்தாய்.
23. உன் உதட்டோட சிவப்ப... - பாஞ்சாலங்குறிச்சி.
24. கண்மணி அன்போடு காதலன்... - குணா.
25. மாலையில் யாரோ மனதோடு பேச... - சத்ரியன்.
26. மீனம்மா அதிகாலையிலும் அந்தி மாலையிலும்... - ஆசை.
27. அந்தி நேரம் தென்றல் காற்று... - இணைந்த கைகள்.
28. என்னுள்ளே என்னுள்ளே... - வள்ளி.
30. மாதத்தில்...- வாலி.
31. உன்னைப் பார்த்த பின்பு நான்...- காதல் மன்னன்.
32. ஒரு கடிதம் எழுதினேன்... - தேவா.
33. இரவு பகலைத் தேட... - கண்ணுக்குள் நிலவு.
34. ஓ பட்டர்பிளை... - மீரா.
35. டயானா....டயனா... - காதல் கவிதை.
36. காதல் மீதில் ஒரு காதல்... - காதல் கவிதை.
mmhhm..... goes endless. rest later. enjoy everyone.
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